﻿/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2009 Frederico Caldeira Knabben
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses at your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 *
 * FCKXml Class: class to load and manipulate XML files.
 * (IE specific implementation)
 */

var FCKXml = function()
{
    this.Error = false ;
}

FCKXml.GetAttribute = function( node, attName, defaultValue )
{
    var attNode = node.attributes.getNamedItem( attName ) ;
    return attNode ? attNode.value : defaultValue ;
}

/**
 * Transforms a XML element node in a JavaScript object. Attributes defined for
 * the element will be available as properties, as long as child  element
 * nodes, but the later will generate arrays with property names prefixed with "$".
 *
 * For example, the following XML element:
 *
 *        <SomeNode name="Test" key="2">
 *            <MyChild id="10">
 *                <OtherLevel name="Level 3" />
 *            </MyChild>
 *            <MyChild id="25" />
 *            <AnotherChild price="499" />
 *        </SomeNode>
 *
 * ... results in the following object:
 *
 *        {
 *            name : "Test",
 *            key : "2",
 *            $MyChild :
 *            [
 *                {
 *                    id : "10",
 *                    $OtherLevel :
 *                    {
 *                        name : "Level 3"
 *                    }
 *                },
 *                {
 *                    id : "25"
 *                }
 *            ],
 *            $AnotherChild :
 *            [
 *                {
 *                    price : "499"
 *                }
 *            ]
 *        }
 */
FCKXml.TransformToObject = function( element )
{
    if ( !element )
        return null ;

    var obj = {} ;

    var attributes = element.attributes ;
    for ( var i = 0 ; i < attributes.length ; i++ )
    {
        var att = attributes[i] ;
        obj[ att.name ] = att.value ;
    }

    var childNodes = element.childNodes ;
    for ( i = 0 ; i < childNodes.length ; i++ )
    {
        var child = childNodes[i] ;

        if ( child.nodeType == 1 )
        {
            var childName = '$' + child.nodeName ;
            var childList = obj[ childName ] ;
            if ( !childList )
                childList = obj[ childName ] = [] ;

            childList.push( this.TransformToObject( child ) ) ;
        }
    }

    return obj ;
}
